Talks with suppliers and subcontractors on Fundamental Rights, Sustainability, and Anti-corruption issues.

During 2023, the Board formally delegated the authority to review sustainability-related issues to the Board of Directors’ Committee.

Parallel to this, in 2023, the company conducted the first human rights diagnosis, to analyze the risks to which the company is exposed through its value chain.

During 2023, there was a capital increase amounting to $25,108 million.

The company stood out in the period with a total combined, robust, and historical backlog of $2,139,460 million, of which the ICSA unit contributed $1,722,268 million, Aconcagua $401,500 million, while RDI contributed $15,692 million.

Completion of a Double Materiality Study, which included a consultation process with the various stakeholders of SalfaCorp and a pre-analysis of impact materiality and financial materiality, which was validated together with the company to consolidate the double materiality analysis.

Regarding the Real Estate Development Assets unit, the portfolio reached UF 13 million in its industrial, commercial, and multifamily business lines.

Entry of SalfaCorp S.A. as a signatory to the United Nations Global Compact in Chile.

Participation in the Corporate Sustainability Assessment (CSA) conducted annually by S&P Global.

DS49-format social projects totaled 32 construction works throughout Chile, in addition to 24 real estate projects in the construction stage and 34 in the deed stage of Aconcagua.

The real estate unit reached a combined deed of UF 6.2 million in the year, 48% higher compared to that of the previous year. The net pledge (pre-sales) of the unit amounted to UF 4.2 million, compared to UF 3.7 million a year earlier.

Acknowledgment: Pro Seal #ProCommitment. Compliance with standards established by the Chilean Construction Chamber awarded to Salfa Montajes, Constructora Salfa, and Icem.

Increasing adoption of methodologies (such as BIM) in project development and management, a major step towards the incorporation of prefabrication and automation technologies.

As of December 2023, the company maintained 121 projects under construction, of which 79 correspond to ICSA, highlighting the execution of projects for clients such as Codelco, Lumina Copper, SQM, Serviu, Albemarle, BHP in Spence and Escondida, and Minera Ojos del Salado, among others. On the other hand, work began on the EPC project, the New Concentrator Plant of Minera Centinela.

The Company's EBITDA closed in 2023 at $117,705 million, a 31.6% increase over the previous year, while the company's revenues totaled $1,040,369 million, an increase of 25.4% compared to the same period in 2022.

SalfaCorp ended the year 2023 with historic profit figures totaling $42,870 million.

Participation in a 360° Stakeholders analysis conducted by SSINDEX on ESG variables impacting our business, evaluating risks associated with the behaviors of Collaborators and Suppliers, connected to SalfaCorp's business strategy.

We conducted an audit of the carbon footprint calculation process, which involved reviewing the process and associated information regarding greenhouse gas emissions, as well as quantifying the carbon footprint.

COVID-19 Pandemic and Implemented Strategy: In March, the COVID-19 pandemic reached the region and our country. Since the beginning, the company has maintained its strategy to contain impacts and ensure the operation of each business unit through three pillars: (i) Protecting the health and lives of all employees, (ii) Maintaining operational continuity under an austerity regime, and (iii) Adjusting planned investments for the year 2020.

Corporate Human Capital Management Formation at SalfaCorp: In July of this year, SalfaCorp established a single Corporate Human Capital Management department, consolidating these areas across all business units. This new position will report directly to the Corporate General Manager.

SalfaCorp renegotiated its syndicated loan profile with the seven participating banks from the syndicated loan signed in 2017, extending the amortization period from 3 to 5 years. The new maturity profile now extends until 2024, providing greater liquidity for the current year and 2021. This action aligns with one of the main measures implemented by SalfaCorp in response to the COVID-19 pandemic, aiming to maintain adequate financial flexibility.

Awarding of Contracts by ICSA Unit: During 2020, ICSA secured significant contracts totaling approximately $ 730,000 million, particularly in the areas of Assemblies and Underground Mining. Noteworthy among these contracts are those with Codelco, Quebrada Blanca 2, Minera Zaldívar, SQM, Minera Spence, SERVIU (DS49-format social projects in the Magallanes Region), among others.

Awarding of DS49-format social housing projects: As part of the social integration project development, during 2020, Constructora Novatec was awarded the construction of 3 DS49-format social projects, benefiting approximately 280 families in the Arica-Parinacota region. Additionally, during the year, 5 DS49-format projects were completed, delivering a total of 1,241 housing units in the Valparaíso, Metropolitan, and Maule regions.

Inmobiliaria Noval Selected for DS19-format Social Projects: In the context of subsidized housing projects, during the third quarter of the year, Inmobiliaria Noval was chosen to develop four new SERVIU social projects in DS19-format. These projects will benefit a total of 690 families in the Valparaíso and Biobío regions.

SalfaCorp's First Carbon Footprint Registration: In 2020, aligning with Chile's international commitments in this area, SalfaCorp initiated a process to quantify its corporate-level carbon footprint. This exercise encompassed the company's corporate headquarters, its four business units, and operations nationwide.

Industrial and Mutlifamily Real Estate Projects: For RDI, 2020 marked a year of profound analysis and future vision in the real estate business. The company decided to venture into multifamily and industrial real estate businesses with upcoming projects located in the municipal communities of La Florida and Pudahuel, respectively. This decision takes into account the strong expansion projected for these business models.

COVID-19 pandemic and implemented strategy. Throughout 2021, the vaccination program and booster doses yielded positive results, allowing a greater return to normalcy in construction activities, always prioritizing the health and safety of workers. By the end of the year, more than 95% of the company's workforce had received two or more vaccine doses.

Business Segment Reconfiguration: To enhance understanding of the company's operations, effective January 1, 2021, SalfaCorp S.A. restructured the financial reporting of its operational segments, integrating the IACO and construction units. This simplifies the comprehensive management of both units and fosters operational and administrative synergies.

Chilean Standard 3262 "Gender Equality and Work-Life Balance" is part of SalfaCorp's sustainability development pillars. In 2021, a certification process for Chilean Standard 3262 "Gender Equality and Work-Life Balance in work, family, and personal life" was initiated. Our goal is to certify that the company provides the necessary opportunities and conditions for each employee to develop and contribute to an environment of cordiality, equality, respect, and openness.

Innovation at SalfaCorp: Following a thorough assessment of innovation capabilities in a challenging digital environment, the company defined specific objectives in this area. At the beginning of 2021, a plan was launched with the purpose of building capabilities and providing necessary tools for SalfaCorp's leaders and employees. This aims to enhance their leadership and performance in managing and developing innovation, thereby increasing their impact on value proposition.

Awarding of DS49-format social housing projects: As part of the Social Integration project development, in 2021, the company was awarded a total of 15 DS49-format social projects. Among these, 8 will be developed in Arica, Copiapó, Rancagua, Temuco, Osorno, and Puerto Montt, while 7 will be in the Magallanes Region. These projects will benefit approximately 3,900 families.

Launches and start of construction of real estate projects during 2021: During the year 2021, 19 new phases of real estate projects were launched for sale in the IACO unit, with a potential sale of UF 8.3 million. During the same period, construction started on 21 phases, with a potential sale of UF 10.2 million.

Awarding of Contracts by ICSA Unit: During 2021, ICSA secured significant contracts totaling approximately $510,000 million, particularly in the areas of Assemblies, Underground Mining, and Construction. Notable among these awards are contracts with Codelco (Salvador and Andina divisions), Minera Centinela, SQM, SERVIU (DS49-format social projects in the Magallanes Region), projects in Peru in the healthcare sector, and the Chinchero Airport, among others.

Participation in Global Sustainability Indices: For the first time, SalfaCorp actively participated in the Dow Jones Sustainability Index (DJSI), a sustainability benchmark that assesses organizations' environmental, social, and governance practices through global, regional, and country-specific indices. Additionally, the company conducted the Stakeholders Sustainability Index (SSINDEX) evaluation, involving consultations with supplier companies and subcontractors to gather their perceptions of SalfaCorp's management across various domains.

Awarding of La Frontera Hydroelectric Project: In 2019, SalfaCorp, through its unit ICSA, was awarded the construction of the La Frontera Hydroelectric Project. Located on the border between the municipal communities of Los Ángeles and Mulchén in the Biobío Region, the project amounts to approximately USD 150 million (over $112,000 million CLP). Construction for this project is set to commence in mid-2020.

Management Change: In the April 2019 board meeting, Mr. Fernando Zúñiga Z. resigned from the position of chief executive officer (CEO) of SalfaCorp. In his place, the Board appointed Mr. Jorge Meruane B., who had been serving as Corporate Finance Manager up to that date. Starting June 2019, Mr. José Luis Sánchez S. assumed the role of new Corporate Finance Manager.

SalfaCorp Bonds Placement: In May, SalfaCorp issued bonds in the local market amounting to UF 1.0 million (equivalent to USD 40.5 million) with an 11-year maturity and a 3-year grace period. This transaction attracted a wide range of investors and was rated bbb with a stable outlook by Fitch Ratings and Feller Rate. The funds were primarily allocated for refinancing the company's financial liabilities and its subsidiaries.

Awarding of Subsidized Social Housing Projects: As part of the Ministry of Housing and Urban Development's social integration project development in 2019, SalfaCorp was awarded the construction of over 3,500 subsidized housing units under DS49-format. These projects are distributed across the regions of Arica-Parinacota, Valparaíso, Metropolitan, O'Higgins, Los Lagos, and Magallanes.

First Sustainability Report: In 2019, SalfaCorp published its inaugural Sustainability Report, compiling the company's social and environmental management efforts. This report underscores the company's commitment to transparency with its stakeholders, presenting its business and governance practices, corporate sustainability, relations with employees, suppliers, customers, and communities, and environmental management, among other aspects.

Launches and construction commencements of real estate projects: Throughout 2019, the IACO unit launched sales for 19 phases of real estate projects with a potential sales volume of UF 7.9 million. Among these are 4 building projects with a potential sales volume of UF 3.0 million. Simultaneously, construction commencements on 17 new phases with a potential sales volume of UF 5.3 million.

IMI International Expansion: Intercoastal Marine Inc. continued its international expansion strategy in 2019, participating in several bidding processes across Central America and the Caribbean. The company secured agreements aimed at opening new markets, culminating in December with the award of a cruise terminal construction project on Stake Bank Island, located 12 kilometers off the coast of Belize City.

Altos del Parque Shopping Center Project: By the end of 2019, construction was completed on SalfaCorp's first commercial real estate project, Altos del Parque, in the commune of Peñalolén. The project encompasses 37,208 square meters, featuring a shopping center, supermarket, home improvement store, and shared area finishes and installations.

Collaborative security agreement. Safety culture. In our journey to build and consolidate a culture of safety, we signed a collaborative agreement with Safety Mutual (CCHC) and the Institute for Industrial Safety Culture of France (ICSI).

Successful placement of SalfaCorp bonds. During 2018, SalfaCorp successfully placed two corporate bond issues (series p in April and series s in December) totaling UF 4.0 million; entirely for refinancing financial liabilities.

Historical backlog. As of June 2018, the ICSA Business Unit closed with a historic backlog of works to be executed, totaling more than $1.000.000 million.

Launch of IACO projects. In 2018, the Aconcagua Residential Develpoment Business Unit launched 21 projects & stages for sale, with a potential sale of UF 6.7 million: including 4 high-rise building projects, in line with the unit's strategy.

Project agreements. By late 2018, the Real Estate Development Assets Business Unit signed agreements for two new commercial real estate projects in the Metropolitan Region, covering a total area of approximately 45,000 m2.

Subsidized social housing. Construction began on five projects in 2018, including three DS19-format social integration projects and two DS01 subsidy social projects, totaling 1,021 housing units; two DS19-format projects were awarded by Minvu for 395 units, and the "Gestired" agency was created to manage notarization through public instruments, facilitating this process and reducing operational costs for clients.

Important award of DS49-format Contest. Within the framework of the social housing program DS49-formatof Minvu's Solidarity Housing Fund, in 2018, the building unit was awarded a contest promoted by Serviu and Seremi Minvu in the Los Lagos Region, which involves the design and construction of 400 homes in the city of Osorno. The project stands out for its high thermal and energy efficiency standards, pioneering the incorporation of requirements from the atmospheric decontamination plan.

Greater dynamism in the Peruvian market. During 2018, the Peruvian market showed greater dynamism and is reflected in our Backlog in this country, which grew twice as much, reaching approximately $31,000 million.

Continued presence in the Dominican Republic. In November 2018, Intercoastal Marine Inc. was awarded the construction of the third maritime project on the island, allowing it to remain uninterrupted since 2016. On this occasion, the work is an EPC for the Port of Haina, located in Santo Domingo.

Award of the Spence Project contract to Fluor Salfa. During the third quarter of 2017, the 50/50 Joint Venture formed between SalfaCorp and Fluor Corporation was awarded an EPC contract for the "Spence Growth Option" project at BHP's Spence open pit mine in northern Chile. This alliance will be responsible for the design, construction, procurement, and integration of goods and services required to deliver a copper concentrator plant, capable of processing 95,000 tons of ore per day.

Project awards and acknowledgment in the El Teniente Division. Geovita, a leading mining development company, secured significant contracts with Codelco's El Teniente division in Rancagua. Highlighted projects include " Obras interior Mina de Nuevo Nivel Mina," " Adits de Ventilación Fase II," and " Enlace Mina Esmeralda Sur," aimed at maintaining copper production at current levels from 2022 onward for four decades. Additionally, Geovita was acknowledged for its outstanding management in 2017 in integrating technology into its processes within this division.

Aconcagua Residential Development Unit, in partnership with CrediCorp, successfully placed Fund III, raising UF 1.5 million, with demand reaching four times the placement amount. The funds will finance housing and building projects in Santiago, Viña del Mar, and Concepción over the next 7 years, focusing on socioeconomic sectors C2, C3, and D.

Award of subsidized housing projects. In the framework of social integration projects promoted by the Ministry of Housing and Urbanism, Inmobiliaria Noval was awarded 925 homes under DS-19, located in Antofagasta, Puente Alto, Villa Alemana, and Temuco in 2017. The year also saw the development of 596 homes under DS-01, divided among Cerrillos, Quinta Normal, Puente Alto, and Padre Hurtado.

Commencement of the Altos del Parque Shopping Center EPC Project. In November 2017, SalfaCorp began construction of its first commercial real estate venture under Inmobiliaria y Rentas Quilín SPA., in which it holds a 50% stake. The project will cover approximately 38,000 m2 and will be built by Constructora Tecsa, featuring a shopping center, supermarket, home improvement store, and the finishing and installation of its shared areas.

SalfaCorp’ syndicated loan for UF 2.6 million. In August 2017, SalfaCorp signed a credit agreement with 7 creditor banks, totaling UF 2,600,000. This financing aimed to extend the maturity profile of the company's financial liabilities amid low-interest rates. The main financial covenants remained unchanged from those of the syndicated loan signed in 2014.

Infrastructure works commence for Laguna del Sol. In August 2017, Laguna del Sol initiated the construction of two major projects for this mega-project: the San Ignacio underpass and Rainwater Emissary, built by construction companies ICIL Icafal and Novatec, respectively. Both projects total contracts worth UF 313,000, representing an investment of UF 215,000 for Laguna del Sol SPA.

New structure of Aconcagua Residential Development. By the end of 2016, it transitioned from being organized by geographic area to a product-based structure in three areas: High-rise buildings, Four-story houses and buildings, and subsidized housing.

New strategic partner. Fluor, a multinational company, and SalfaCorp decided to form a strategic alliance after complementarily participating in major projects in the mining sector. With this alliance, they will jointly offer a broader spectrum of engineering and construction services.

vAward of projects for Social and Territorial Integration program DS-19 by the Ministry of Housing and Urbanism. The program involves the construction of approximately 36,000 social housing units with demand subsidies. Inmobiliaria Noval was awarded three projects: Brisas San Pedro, Los Cipreses, and Los Maitenes.

New structure of SalfaCorp Business Units. Its operational segments were redefined into Business Units: Engineering and Construction (ICSA), Building (Novatec and Noval), Aconcagua Residential Development (IACO), and Real Estate Development Assets (RDI).

IT Management strengthened structured information flows in the SAP technology solutions framework. The hardware and software platform (database and operating system) were completely renewed.

New Aconcagua Residential Development business structure. It involved separating Aconcagua from the Building Unit and formally segmenting the residential development business into two essential and complementary lines: one for developing and selling homes, and one focused on managing long-term real estate assets for rent.

Birth of the first value "We have absolute respect for life." It was set as the first of 7 values, defining safety as a core principle of the company.

Commitment to the environment. Inmobiliaria Aconcagua achieved an energy rating C from the Ministry of Housing and Urbanism for three projects, ensuring a 42% energy savings. Other innovations included the creation of clean points, convective ventilation, and solar collectors in various projects.

Inmobiliaria Aconcagua ranked N°1 in Chile for the fifth consecutive year in the Brand Equity ranking by Collect GFK, measuring prestige, affection, and presence.

Salfa Mantenciones signed a significant agreement with Bridgestone Industrial Products, marking its entry into the South American market.

SalfaCorp was acknowledged as the best company in value creation for 2013 according to the top 100 ranking by Revista Capital and Banco Santander GBM.

Geovita achieved a milestone in mining by integrating 6 women as machinery operators for underground excavation for the first time.

The President of the Republic inaugurated works at Rampa la Arena, constructed by Propuerto.

SalfaCorp completed the structural work for the Costanera Center building, the tallest in South America.

SalfaCorp inaugurated the Santa Cruz de Tinguiririca chapel, the first in a series of architectural church types donated to the Episcopal Conference.

SalfaCorp signed a significant construction and assembly contract for the wet and dry areas of the processing plant at the Sierra Gorda mining project.

SalfaCorp received certification for its model of preventing specified crimes under the law on corporate criminal liability.

SalfaCorp completed the works for the Costanera Center Mall, the largest in Latin America.

Acquisition of Tecsa S.A., Geovita S.A., Fe Grande S.A., and ICEM S.A.

New specialties: Earthmoving, drilling, and blasting.

Acquisition of the Panamanian construction company Intercoastal Marine Inc., expanding operations to the Caribbean and Pacific coasts.

Icare awarded SalfaCorp as the best company of 2011.

Implementation of SAP.

Reorganization of the business structure under Salfa Engineering and Construction S.A. and Aconcagua S.A.

Formation of ConSalfa: Partnership with Constructora Conconcreto (Colombia).

New specialties in Engineering and Construction: Road Infrastructure.

Acquisition of Constructora Propuerto Ltda.

Control of 80% of Peruvian company HV Contratistas S.A.

New specialties in Engineering and Construction: Industrial maintenance, mining tunnels, and maritime works.

Merger with Inmobiliaria Aconcagua S.A.

Opening of the Asia Comercial, office branch in China to facilitate sourcing from more competitive alternatives.

Listing on the stock exchange. Corporate restructuring under SalfaCorp S.A.

Formation of Inmobiliaria Geosal S.A.

Formation of Montajes Industriales Salfa S.A.

The company becomes a Public Limited Company.

Opening of a branch in Punta Arenas.

Construction of the Votive Temple of Maipú, an important heritage value construction.

Construction of the Estadio Nacional, featuring advanced engineering for its time.

Start of activities for Salinas y Fabres Hermanos Ltda.